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Lingual Niti Archwire
Sep 03, 2018

A bow wire is a metal wire stuck in a bracket groove or through a tube with a loop, also known as a corrective wire.


Orthodontic archwire is a filamentous solid, generally made of stainless steel, nickel titanium alloy, titanium alloy, titanium molybdenum alloy, copper nickel titanium alloy and other materials. It is mainly used to correct the malformation of teeth and is used in combination with socket, band ring and buccal tube.

Its high resiliency demands significant over-bending to accomplish the desired form. The superb flexibility reduces the odds of debonding brackets. This design improves their capacity to hold out against the demands of sterilisation. 


In general, orthodontic arch wire has orthodontic wire, orthodontic ligation wire, nickel titanium orthodontic wire, stainless steel orthodontic wire.


It is the main booster. Bow wire can be divided into many kinds according to the material, thickness and shape. Each patient USES a few to a dozen bows from the beginning of correction to completion. The doctor USES the elasticity of the bow wire itself or makes certain bending on the bow wire, then fastens the bow wire to the bracket through the rubber ring or thin steel wire, passes through the bracket, the belt loop, releases the force to the tooth slowly and gently, the tooth moves slowly along the orbit made by the bow wire. In the process of correction, the wire is gradually replaced from thin to thick, from soft to hard, and from round to square.


What is the magical power of a bow wire to align teeth?


1) tooth movement: the pressure applied by the elastic wire ACTS like a locomotive following the trajectory to guide the tooth movement


2) increased alignment: as the teeth gradually began to align, the rigid bow wires replaced the elastic ones and applied more pressure.


3) jaw plasticity begins: as the jaw is shaped, the rigid arch wire keeps the teeth in the proper alignment, which often takes months for the jaw to be shaped.


4) maxillary plastic force: the shape of the jaw allows the teeth to move forward or backward, inward or outward, upward or downward, depending on the direction of the force applied.


5) ligaments traction: continuous application of force causes bone absorption in the direction of tooth movement. As teeth drift, the ligaments surrounding them begin to be pulled.


6) alveolar bone remodeling is completed: the stretched ligaments suggest the body to fill the gap formed after tooth drift, and new bone deposition is formed over time, so as to maintain the position of teeth after migration.


In fact, the principle of correction is to use the external force formed by the braces to gradually destroy the balance of the alveolar bone, to reconstruct and regenerate the alveolar bone, so as to achieve the goal of restoring the crooked teeth. The simple thing is: the force on the teeth, the transfer to the alveolar bone, the resorption of the alveolar bone, the movement of the teeth.


Usually the correction is not very painful. After the orthodontic device is put on or after the orthodontic device is applied, there may be two or three days when the tooth feels some pain. Medically called dull pain, not very serious pain, but usually within a week this phenomenon will disappear.